Research-Stack/4-Infrastructure/nano-kernel/gcl-modules/m001-thermodynamic-stress.gcl

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-- M001: Thermodynamic Stress Kernel Module
-- Source: burgers_heat_diffusion (3-Mathematical-Models)
-- Kernel Function: ThermalZoneManager
--
-- Models CPU/memory thermal zones as 1D Burgers equation states.
-- Thermal stress = velocity field u(x,t) where x=zone index, t=time.
-- Viscosity ν = thermal conductivity, shock waves = hot spots.
-- Truth Seal: [ SSS-ENE-THERMAL-2026-05-03 ]
module M001_ThermodynamicStress where
import BaseTypes
import Semantics.Q16_16 (Q16_16, add, sub, mul, div, ofNat, zero)
structure ThermalZone where
id : ZoneID
position : Q16_16 -- Spatial coordinate in thermal manifold
temperature : Q16_16 -- Current temperature (u)
conductivity : Q16_16 -- Thermal conductivity (ν)
capacity : Q16_16 -- Heat capacity
powerDissipation : Q16_16 -- Power input (forcing term)
neighbors : Array ZoneID -- Adjacent zones (for Laplacian)
def initThermalState (zones : Array ThermalZone) : ThermalState :=
{ zones := zones
, dt := Q16_16.ofNat 1 -- 1 second timestep
, dx := Q16_16.ofNat 1 -- 1 zone spacing
, t := Q16_16.zero
}
-- Burgers RHS: du/dt = ν·d²u/dx² - u·du/dx + forcing
-- Discretized with central differences
def burgersRHS (state : ThermalState) (idx : Nat) : Q16_16 :=
let zone := state.zones[idx]
let ν := zone.conductivity
let u := zone.temperature
-- Laplacian d²u/dx² = (u[i-1] - 2u[i] + u[i+1]) / dx²
let left := state.zones[idx-1].temperature
let right := state.zones[idx+1].temperature
let laplacian := div (sub (add left right) (mul (Q16_16.ofNat 2) u)) (mul state.dx state.dx)
-- Advection u·du/dx = u·(u[i+1] - u[i-1]) / 2dx
let advection := mul u (div (sub right left) (mul (Q16_16.ofNat 2) state.dx))
-- Forcing = power dissipation / capacity
let forcing := div zone.powerDissipation zone.capacity
-- RHS = ν·laplacian - advection + forcing
add (sub (mul ν laplacian) advection) forcing
def thermalStep (state : ThermalState) : ThermalState :=
let newZones := state.zones.map (\zone idx =>
let rhs := burgersRHS state idx
{ zone with temperature := add zone.temperature (mul rhs state.dt) }
)
{ state with zones := newZones, t := add state.t state.dt }
-- Stress metric: max |du/dx| (thermal gradient shock indicator)
def thermalStressMetric (state : ThermalState) : Q16_16 :=
let gradients := state.zones.map (\zone idx =>
if idx < state.zones.size - 1 then
let right := state.zones[idx+1].temperature
abs (sub right zone.temperature)
else
Q16_16.zero
)
gradients.maximum
-- Kernel syscall interface: get thermal stress recommendation
def syscallThermalStress (zoneId : ZoneID) : IO ThermalReport := do
let zone ← findZone zoneId
let state ← readThermalState
let stress := thermalStressMetric state
let recommendation :=
if stress > THERMAL_CRITICAL then
.EmergencyThrottle
else if stress > THERMAL_WARNING then
.ReduceClock
else
.Normal
return {
zone := zone
temperature := zone.temperature
stressLevel := stress
action := recommendation
timestamp := now ()
}
end M001_ThermodynamicStress